Backup

['bækʌp] or ['bæk,ʌp]

Definition

(noun.) (computer science) a copy of a file or directory on a separate storage device; 'he made a backup in case the original was accidentally damaged or erased'.

(noun.) an accumulation caused by clogging or a stoppage; 'a traffic backup on the main street'; 'he discovered a backup in the toilet'.

Editor: Spence--From WordNet